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Plane Power alternator

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GrummanDude

Joined: 15 Jan 2006
Posts: 926
Location: Auburn, CA

Posted: Sun Apr 11, 2010 8:01 am Post subject: Plane Power alternator

Remember a few months ago when I asked what other's experience was with PP alternators?  At the time, I had installed a new PP alternator that was very noisy. A couple of other PP owners also wrote to say theirs was noisy also. My customer sent his alternator to PP to have them check it. It came back saying it was in specs. It was still very noisy. He installed an overhauled Kelly alternator that was quiet. 

PP needs to tighten up their specs. 



Sent from my iPhone



On Apr 8, 2010, at 12:59 PM, teamgrumman(at)aol.com (teamgrumman(at)aol.com) wrote:



[quote]We're 'negotiating' right now.  He has done a lot of modified alternators and thinks he can by-pass any testing based on his data and the previous flight test data.  Keep your fingers crossed.

 

  

 

 

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_________________
Gary
AuCountry Aviation
Home of Team Grumman

v1rotate(at)verizon.net
Guest

Posted: Mon Apr 12, 2010 11:31 am Post subject: Plane Power alternator

Gary,

  

 Don't know if you were able to see my post today on  the GG responding to Les Staples minimizing the PP alternator noise issue.   They appear to be in denial about this.  The noise really bothers Allisen  when she flys with me.  One reason, beyond my own personal preferences,  that I try to keep the plane so nice is so that Allisen has confidence in the  machinery and is comfortable on our trips.  It irks me when something like  this noise deal intrudes on that objective.  My GG post stated that there  is no way you could have a problem with an alernator installation unless the  unit istelf had issues.  Incidentally, we still want to fly up to  Auburn.  The weather just hasn't settled down yet from winter  leftovers.

  

 Bill

 



 [quote]   Remember a few months ago when I asked what other's experience was with    PP alternators?  At the time, I had installed a new PP alternator that    was very noisy. A couple of other PP owners also wrote to say theirs was noisy    also. My customer sent his alternator to PP to have them check it. It came    back saying it was in specs. It was still very noisy. He installed an    overhauled Kelly alternator that was quiet. 

   



   PP needs to tighten up their specs. 



Sent from my  iPhone

   

On Apr 8, 2010, at 12:59 PM, teamgrumman(at)aol.com (teamgrumman(at)aol.com) wrote:

   

   [quote]     We're 'negotiating' right now.       He has done a lot of modified alternators and thinks he can by-pass      any testing based on his data and the previous flight test data.  Keep      your fingers crossed.



     

     -----Original      Message-----

From: flyv35b <flyv35b(at)minetfiber.com (flyv35b(at)minetfiber.com)>

To:      [url=mailto:teamgrumman-list(at)matronics.com]teamgrumman-list(at)matronics.com (teamgrumman-list(at)matronics.com)[/url]

Sent:      Wed, Apr 7, 2010 6:29 am

Subject: Re: AG5B and the      Jaguar cowling



          Gary, I didn't realize that was the case with your      baffling.  That sounds like a welcome improvement for accessibility to      the alternator.

      

     I realize that logic does not play an important      role in their decision making many times but it sounds like it is your DER      that is making the decision as to whether another cooling test should be run      or not.  Doesn't he have the authority to make such a decision based on      the facts and info available?

      

     Cliff

     [quote]       ---

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GrummanDude

Joined: 15 Jan 2006
Posts: 926
Location: Auburn, CA

Posted: Tue Apr 13, 2010 12:03 pm Post subject: Plane Power alternator

Bill,

During your annual, we'll take your alternator to a place I use and have them check it. If needed, we'll have them replace diodes. I agree, PP needs to make, not only a lighter mousetrap, but a better mousetrap. Otherwise what's the point? I have a new PP alternator on my shelf for my plane. If it isn't a better alternative to a Kelly rebuild, then I'm going to stop recommending them. 

Gary



Sent from my iPhone



On Apr 12, 2010, at 12:27 PM, "WILLIAM KELLY" <v1rotate(at)verizon.net (v1rotate(at)verizon.net)> wrote:



[quote]  Gary,

  

 Don't know if you were able to see my post today on  the GG responding to Les Staples minimizing the PP alternator noise issue.   They appear to be in denial about this.  The noise really bothers Allisen  when she flys with me.  One reason, beyond my own personal preferences,  that I try to keep the plane so nice is so that Allisen has confidence in the  machinery and is comfortable on our trips.  It irks me when something like  this noise deal intrudes on that objective.  My GG post stated that there  is no way you could have a problem with an alernator installation unless the  unit istelf had issues.  Incidentally, we still want to fly up to  Auburn.  The weather just hasn't settled down yet from winter  leftovers.

  

 Bill

 



 [quote]   Remember a few months ago when I asked what other's experience was with    PP alternators?  At the time, I had installed a new PP alternator that    was very noisy. A couple of other PP owners also wrote to say theirs was noisy    also. My customer sent his alternator to PP to have them check it. It came    back saying it was in specs. It was still very noisy. He installed an    overhauled Kelly alternator that was quiet. 

   



   PP needs to tighten up their specs. 



Sent from my  iPhone

   

On Apr 8, 2010, at 12:59 PM, [url=mailto:teamgrumman(at)aol.com]teamgrumman(at)aol.com (teamgrumman(at)aol.com)[/url] wrote:

   

   [quote]     We're 'negotiating' right now.       He has done a lot of modified alternators and thinks he can by-pass      any testing based on his data and the previous flight test data.  Keep      your fingers crossed.



     

     -----Original      Message-----

From: flyv35b <[url=mailto:flyv35b(at)minetfiber.com]flyv35b(at)minetfiber.com (flyv35b(at)minetfiber.com)[/url]>

To:       (teamgrumman-list(at)matronics.com)[url=mailto:teamgrumman-list(at)matronics.com]teamgrumman-list(at)matronics.com (teamgrumman-list(at)matronics.com)[/url]

Sent:      Wed, Apr 7, 2010 6:29 am

Subject: Re: AG5B and the      Jaguar cowling



          Gary, I didn't realize that was the case with your      baffling.  That sounds like a welcome improvement for accessibility to      the alternator.

      

     I realize that logic does not play an important      role in their decision making many times but it sounds like it is your DER      that is making the decision as to whether another cooling test should be run      or not.  Doesn't he have the authority to make such a decision based on      the facts and info available?

      

     Cliff

     [quote]       ---

- The Matronics TeamGrumman-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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_________________
Gary
AuCountry Aviation
Home of Team Grumman

md11strejo(at)YAHOO.COM
Guest

Posted: Tue Apr 13, 2010 12:23 pm Post subject: Plane Power alternator

I've had a PP alternator on my AA5B for about 3yrs now.  It has never given me any problems at all.  No noise or any other problems.  



Scott Trejo

N499GT

On Apr 13, 2010, at 12:18 PM, G Vogt wrote:

[quote]Bill,

During your annual, we'll take your alternator to a place I use and have them check it. If needed, we'll have them replace diodes. I agree, PP needs to make, not only a lighter mousetrap, but a better mousetrap. Otherwise what's the point? I have a new PP alternator on my shelf for my plane. If it isn't a better alternative to a Kelly rebuild, then I'm going to stop recommending them. 

Gary



Sent from my iPhone



On Apr 12, 2010, at 12:27 PM, "WILLIAM KELLY" <v1rotate(at)verizon.net (v1rotate(at)verizon.net)> wrote:



[quote]  Gary,

  

 Don't know if you were able to see my post today on  the GG responding to Les Staples minimizing the PP alternator noise issue.   They appear to be in denial about this.  The noise really bothers Allisen  when she flys with me.  One reason, beyond my own personal preferences,  that I try to keep the plane so nice is so that Allisen has confidence in the  machinery and is comfortable on our trips.  It irks me when something like  this noise deal intrudes on that objective.  My GG post stated that there  is no way you could have a problem with an alernator installation unless the  unit istelf had issues.  Incidentally, we still want to fly up to  Auburn.  The weather just hasn't settled down yet from winter  leftovers.

  

 Bill

 



 [quote]   Remember a few months ago when I asked what other's experience was with    PP alternators?  At the time, I had installed a new PP alternator that    was very noisy. A couple of other PP owners also wrote to say theirs was noisy    also. My customer sent his alternator to PP to have them check it. It came    back saying it was in specs. It was still very noisy. He installed an    overhauled Kelly alternator that was quiet. 

   



   PP needs to tighten up their specs. 



Sent from my  iPhone

   

On Apr 8, 2010, at 12:59 PM,  (teamgrumman(at)aol.com)teamgrumman(at)aol.com (teamgrumman(at)aol.com) wrote:

   

   [quote]     We're 'negotiating' right now.       He has done a lot of modified alternators and thinks he can by-pass      any testing based on his data and the previous flight test data.  Keep      your fingers crossed.



     

     -----Original      Message-----

From: flyv35b < (flyv35b(at)minetfiber.com)flyv35b(at)minetfiber.com (flyv35b(at)minetfiber.com)>

To:       (teamgrumman-list(at)matronics.com) (teamgrumman-list(at)matronics.com)teamgrumman-list(at)matronics.com (teamgrumman-list(at)matronics.com)

Sent:      Wed, Apr 7, 2010 6:29 am

Subject: Re: AG5B and the      Jaguar cowling



          Gary, I didn't realize that was the case with your      baffling.  That sounds like a welcome improvement for accessibility to      the alternator.

      

     I realize that logic does not play an important      role in their decision making many times but it sounds like it is your DER      that is making the decision as to whether another cooling test should be run      or not.  Doesn't he have the authority to make such a decision based on      the facts and info available?

      

     Cliff

     [quote]       ---

- The Matronics TeamGrumman-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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Discover

Joined: 26 Feb 2007
Posts: 429

Posted: Tue Apr 13, 2010 1:43 pm Post subject: Plane Power alternator

I've had a 24volt PP alternator on my Tiger for 4 years without any whining until last flight when Grumman Gary was sitting in the copilot seat. No the whining was not Gary but the alternator. The street lamps would light up when Gary drove under them too. I think that Gary has too much energy and his brain waves are interferring with the magnetic fields. This theory may also explain why Gary's JPI grounded probes read higher than the EI nongrounded probes. 

http://en.m.wikipedia.org/wiki/Street_light_interference?wasRedirected=true

Some guys just have it....



Sent from my iPhone

[quote] 	  Quote: 	
		  	


[b]

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v1rotate(at)verizon.net
Guest

Posted: Wed Apr 14, 2010 12:52 am Post subject: Plane Power alternator

Gary, 

  

 Okay. Also, it will have been five years since  Fletcher replaced the flexible fluid lines in the engine compartment, so I think  it will be time for new ones again this year.  I recall it as a five  year interval. If you need to take measurements ahead of time for ordering  the correct lengths, maybe we could do that on a side trip to  Auburn.

  

 Bill

 [quote]   Bill,

   



   During your annual, we'll take your alternator to a place I use and have    them check it. If needed, we'll have them replace diodes. I agree, PP needs to    make, not only a lighter mousetrap, but a better mousetrap. Otherwise what's    the point? I have a new PP alternator on my shelf for my plane. If it isn't a    better alternative to a Kelly rebuild, then I'm going to stop recommending    them. 

   



   Gary

[b]

- The Matronics TeamGrumman-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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GrummanDude

Joined: 15 Jan 2006
Posts: 926
Location: Auburn, CA

Posted: Wed Apr 14, 2010 9:59 am Post subject: Plane Power alternator

Hi Scott, 

 

  I've received several reports of good PP alternators.  BUT, if there IS a problem and PPs answer to it is, "That's just the way it is."  and doesn't replace it or tighten up their specs to where SOME are not noisy, then it's hard for me to recommend the alternator.

  

 

  Let's put it this way:  if I were the President of the company, I would be making damn sure the product I was selling had zero defects.

  

 

  Gary

 

  

 

 

  --

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Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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_________________
Gary
AuCountry Aviation
Home of Team Grumman

GrummanDude

Joined: 15 Jan 2006
Posts: 926
Location: Auburn, CA

Posted: Wed Apr 14, 2010 10:00 am Post subject: Plane Power alternator

Bill, 

 

  I don't have any measurements for the AA1x.  So, that would be helpful.

  

 

  Gary

 

  

 

 

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Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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_________________
Gary
AuCountry Aviation
Home of Team Grumman

md11strejo(at)YAHOO.COM
Guest

Posted: Wed Apr 14, 2010 1:51 pm Post subject: Plane Power alternator

Gary,



  I agree with you 100%.   PP should at the very least test the alternator and replace it if noise is present.   

Scott Trejo



On Apr 14, 2010, at 12:57 PM, teamgrumman(at)AOL.COM (teamgrumman(at)AOL.COM) wrote:

[quote]Hi Scott, 

 

  I've received several reports of good PP alternators.  BUT, if there IS a problem and PPs answer to it is, "That's just the way it is."  and doesn't replace it or tighten up their specs to where SOME are not noisy, then it's hard for me to recommend the alternator.

  

 

  Let's put it this way:  if I were the President of the company, I would be making damn sure the product I was selling had zero defects.

  

 

  Gary

 

  

 

 

  --

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Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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